The structure of l,2-μ-[bis(diphenylarsino)methane-As,As′]-1,1,1,2,2,2,3,3,3,3-decacarbonyl-triangulo-triruthenium(0)

Abstract

Abstract The crystal structure of the title compound, Ru3(μ-Ph2AsCH2AsPh2)(CO)10 has been determined at room temperature. Crystals are monoclinic, P21/c, a = 13.307(3), b = 11.972(2), c = 24.158(4) Å, β = 107.92(5)°, Z = 4, Dm = 2.03, Dx = 1.92 Mg m−3. The structure was refined by a blocked full-matrix least-squares procedure to final R = 0.070 and Rw = 0.077 for 5699 unique reflections used [I > 2.5 σ(I)] out of 6778. The structure shows that the Ph2AsCH2AsPh2 group that bridges a Ru – Ru bond occupies equatorial positions. Interatomic distances of interest are Ru(1) – Ru(2) = 2.845(1), Ru(1) – Ru(3) = 2.817(1), and Ru(2) – Ru(3) = 2.840(1) Å.